Frozen Adlivun

It's a vast coastal valley area consisted of snow-covered rocks and sharp ice. The frozen rocks look blue, the ice pillars are high enough to reach the sky, and the precipitous ice valley is clear and transparent like crystal. The floor is also frozen like an ice rink. All together it is a bright and cool glacier area. This place is believed by the Inuit as an entrance to hell where the dead inhabit. However, it is actually a place where medical experiments were conducted by Atlantis a long time ago, and now strange creatures exist there. They had been living quietly until recently, when they started acting crazily by the effects of the Oriharukon Sensor that was suddenly activated. Sedna was the strongest one among what Atlantis had created, but now it's merely a crazy monster.